Temperature-regulator for internal-combustion engines.



F. E. LAMMERT.

TEMPERATURE REGULATOR FOR INTERNAL COMBUSTIOI ENGINES.

APPLICATTON FILED MAY 1. 1915.

1,223,079. Patented Apr. 17, 1917.

2 SHEETS-SHEET l- 5 i Z 1 i I 13 a; a; I

, F. E. LAMMERT. TEMPERATURE REGULATOR FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY 1. ISIS- 2 SHEETS-SHEET 2.

Patmted Apr. 17, 1917.

M In lesiLmzefl I'EBDINAHD ERNEST LAKHEBT. i? CHICAGO. ILLINOIS.

rmmrunn-nncuna "OR FOR INTEBNAL-GOMBUS DION ENGINES.

Specification of Letters Patent.

Pa tented Apr. 17, 1917'.

Application filed Kay 1, 1915. Serial 10. 85,808.

To all whom it concern:

Be it known t at l, FERDINAND ERNEST Lemma, a citizen of the United States, residin at Ghica o, in the county of (look and the tate of inois, have invented a new and useful Improvement in Temperature- Begulators for Internal-Combustion Engines, of which-the following is a specification.

My invention relates to a thermostatic control of the circulation of the cooling fluid for the engine cylinder jackets and the invention is set forth in the claims.

Reference will be had to the accom anying drawings in which Fi vation showing engine 0 inders, a radiator and my device connecte in the circulation.

Fig. 2 shows a central sectional elevation through my thermostatic controlling device. so 3 is a sectional view on line 3--3 of :4 is a transverse end elevation looking in the direction of the arrows 4 of Fig. 2.

F' 5 is a transverse sectional elevation gi lookmg in the direction of the arrows 5,

Fi 2. the drawings, 1 indicates the water jackets of -the engine cylinders 2, 3 indicates the intake manifolds. for the water 80 circulation, and 4 the outlet manifolds, and 5- the circulation fluid pump. 6 indicates the radiator. All of the above parts are of the ordina construction. I My ermostatic regulator is indicated by 36 7 and it is conn on one side to the outlet manifold 4 and on the other side to the return circulating pipe 8. The pipe '8 is connected to a'T at 9, to the return pipe 10 going into-the pump.

In my system of controlling the temperature of the engine cylinders, I make the main circulation, independent of the radiator 6 causing the water to circulate around through the water jackets through my regulater and back around to the pump and the 'ackets, maintainin that as the main circuation all the time, eeping a uniform temure of the circulating water unt l such me as the temperature rises abovethe desired oint whereat my regulator diverts the fluid irom the main circulation, causing it to pass from the thermostatic regulator through the pipe 11 to the radiator 6, and then back through the pipe 12 to the T 9'and 55 pig- 01110 back to the pump.

e action of the regulator 7 15 such that 1isasieele-' large under the influence of the heat of the circulating fluid, it keeps all of the water going around through the engine jackets y way of the pipe 8 until an excess temperature is arrived. at, when then a little or all of the circu'ating fluid is diverted through the radiai or, cooling down the circulatln fluid just enough to maintain it at the deslred regulated point.

The details of the regulator are as follows:

On the inside of the casing of the re later 7 there is mounted a thermo mom 1 13 of what is know n as the bellows type, such as is used in me: oid baromete and is in other places. This bellows is in t e form of a hollow disk and it is susported loosely on the inside of a orforate metal basket 14:. This basket. sli es within the embrace of IlbS 15, on the irside of the casing, which permits clear asiage ways around the outslde of the ba et between the ribs 15. ,The mam inside chaml )er 16 is divided by a compert nent wall 17 having an orifice 18 openmg intoa compartment 19. The manifold pipe 4 coming from the top of the cooling acket, carries th( fluid into the chamber 16 where it circulates all around and through the perforated netal basket 14 cominlg m be ows full contact with the thermostatic 13, and then pa: sing around through the orifice 18 into H116 chamber 19 and out through the mail circulating pipe 8. Another chamber 2( is connected y an orificeto 21 to the chamber 16. This chamber 20 is open to pipe 11 connected to the radiator. A valve plate 22 is adapted to close the orfice 18 and a val e plate 23 to close the orifice 21. Valve plate 22 is permanently fixed to a stem 24 and plate 23 is detachably mounted to the ;ame stem and is fastened by the cotter pin 25. The upper end 26 of stem 24 slides in 1|. keeper bloc 27 supported by cross arms 25 to a disk 29 in the end of the main housini; or casing of the regulator.

A spring 30 ho ds the valve plate 23 normall closed on the orifice 21 and thus holding t e orifice 18 normally open all the time. A sprin 31 bears on one side against the bellows t ermo member 13 and on the other side against a pl: its 32 fastened by screws 33 to the wall 1 and the end 34 of stem 24 slides freely thro ugh ahole in the plate 32.

A plate 35 fas1 ened byscrews 36 closes the 110 end of the regulator. Intothe plate 3,5 there is screwed a plate 37 and into this them I screw wo d vent leakage past the threads of the screw 43.-

is screwed the pi 4 of the top manifold. On the inside wal of plate 35 there are two In 39 which carry a pivot pin '40 for the en of a lever 41, the other end of which.

the basket and bellows are moved under the influence of the lever 41.

The screw 43 is threaded into the plate 35 and the head of the screw 49 is also threaded, but on a larger diameter, than the thread which passes through the plate 35. Onto the screwed a jam nut 50 and into the other end of the thread of the jam nut 50 there is screwed a sealin screw 51.

The screw 43 is the adjusting screw for controlling the distance between a boss 52 of the bellows 13 and the end 34 of the valve stem 24. B varying this distance under the influence o screw 43, varies the temperature at which the thermostatic bellows needs'to extend sufliciently to brin the boss 52 in contact with'the end 34 o valve stem and thus lift the valve 1plate 23 opening the orifice 21 and simu t plate 22 a ainst the orifice 18.

As the llows lifts and moves the valve stem, the circulation is diverted from pipe 8 In the event that the thermostat should not be properly adjusted and steam be generated in the circulation, the extra pressure would lift the valve .23 and cause the circulation to flow to the radiator even though the thermostat would fail to act and thus the safety of the engine is insured.

The length of the thread of the screw 43 adapted to screw throu h the plate 35, is not so lon but the en arged head of the prevent the screw from being screwed into t e casin so far as to damage the basket and the be ows.

The lock nut 50 not only locks'the screw 43 from misplacement, but serves as an additional seal to prevent leakage around the screw. a

The screw 51isan additional seal to pre- The arrangement of the valves in the chamber 16 isflsueh tfliiatdthe pressure of the escaping circ atin ui pressesin op 'ts directions in escap mg toward the m1- aneously closing valve I or the return ipe 8 to the jackets, so that when both v ves are open and the circulation is divided part going both ways, there is no siphoning efl'ect drawing reverse currents that make uncertain the operation of the device. This arrangement of the flow of the circulation helps to balance the pressure on the valve blocks and permits the em 10 ment of a simple light spring 30 to hol t e valves in normal position.

The circulating fluid used in cooling systems sometimes gets gummy and clogs the valves, so I make my valves in the form of disks which have small contact faces with their seats and have little liability to gum up and stick. threaded head 49 of the screw 43, there is What I claim is:

1. The combination with the cooling jacket of an engine, a radiator, a ipe connecting the hottest portion of the acket with the radiator, a cooled-water tube leading from the radiator back to the jacket, and a conduit connecting said pipe and tube between the 'acket and radiator, a valve between said con uit and the radiator controllin the passage to the latter, a valve contro 'n the flow in said conduit, a spring normally oldin the first valve closed and the second va ve open, and a thermostatic device, arranged to act in oppofltion to the sprin opening the first valve and closing the second.

2. The combination with the cooling jacket of an engine of a regulating chamber, a pipe leadin mm the upper, hottest portion of the jac et to said chamber a radiator, a normal y closed tube leading from said chamber to the radiator a return pipe from the radiator to the jacket, a normally open conduit leading from said chamber to the return pipe, and means within the chamber for automatically opening and closing saidtube and conduit. v

3. The combination with the cooling jacket of an engine, of a, chamber, outside the jacket, having a receiving compartment, and dischar compartments, a conduit leading from e jacket to the receiving compartment, a radiator having an outlet to the jacket, a conduitleading from one dischar e compartment to the rad1ator,- a conduit lea ing from the other discharge com artment back to the radiator, valves contro ing the passage of water from the receiving compartment to the discharge compartments, respectively and automatic means for opening and closing said valves.

igned at Chica in the State of Illinois, gilficounty of Goo this 24th day of April,

FIBDINAHD m8! Mmll'l'. Witnesses:

Hmmr Wanna Toma, Enwann Jnms Bmomn. 

